[ExI] Neutrino interaction web
rpwl at lightlink.com
Fri Mar 4 13:54:00 UTC 2011
Ben Zaiboc wrote:
> Anders Sandberg <anders at aleph.se> wrote:
>> Ben Zaiboc wrote:
> I'm talking rubbish, aren't I? Plain old lead would be much better. Oh, well..
I wouldn't go that far :-), but the collision cross section for
neutrinos is estimated to be such that if you want to catch a
significant fraction of them you need *roughly* a 1 light-year thick
sheet of lead.
So, I don't see any problem with Adrian's ideas except that you need to
take a 1 light-year thick sheet of lead then compress it to make a thin
sandwich that we can install in orbit, to collect the sun's neutrino output.
Shouldn't be too difficult. Bit of engineering, is all.
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